Baking-oven.



Patented Mar. 26, I901.

A. J. BAXLEY.

BAKING OVEN.

(Applicafion med Nov. 3, 1900.)

2 Sheets-$110 I.

(No Modal.)

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ANDREYV J. BAXLEY, OF DALLAS, TEXAS.

BAKING OVEN.

SPEGIFIGAISLDN forming part of Letters Patent No. 670,91 1, dated Maren 26, 1901.

Application filed November 3, 1900. Serial No. 35,389. No modeli' To aZZ whom it may concern:

Be it known that 1, ANDREW J. BAXLEY, a citizen of the United States of America, residing in Dallas, in the county of Dallas, State of Texas, have invented anew and useful Improvement in Baking-Ovens, of which the following is a specification.

My improvement relates to bakingbvens in which the interior surface is uniformly heated by fines (which convey the heat) at the base, side, and top of the baking-receptacle. I attain these objects by the mechanism illustrated in the accompanying drawings, in which Figure 1 is a horizontal section of the device through Fig. 2 from G to C. Fig. 2 is a cross-section through Fig. 1 from A to A. Fig. 3 is a'longitudinal section through the device complete through Fig. 1 from B to B, and Fig. 4 is a side elevation of the device.

Similar numerals of referenceindicate similar parts throughout the several views.

The baking-oven is to be built of brick, tile, or other suitable material.

The numeral 1 shows the outer side walls; 2, the base of the entire device; 3, the interior side walls; a, an arch resting on the side wall, (which forms a top or cover for the device;) 5, the rear outside wall; 6, the rear inside wall; 7, the front end wall, and '7 front end inside wall, all so arranged as to form the baking-receptacle 8 (provided with a door 8) in the lower part of the device and the heatchamber 9 in the upper part.

In one of the front corners of the oven is a fire-boX 10, (provided with a door 10%) and connected therewith is a fine 11, which extends nearly around the baking-receptacle, between the inner and outer walls, reaching upwardly to a point shown by the numerals 12 12. This fine has direct connection with flue 13, which connects with the chimney-flue 14, built in the chimney 15. On the base 2 are a number of narrow walls 16, (of a suit able height,) running from the front end of the device to the rear end and from one side of the same to the other in such a manner that the said walls merge into each other at right angles, forming in between the walls a number of small spaces 17. These spaces are connected with the flue 11 by smaller heatfiues 18 and with each other by the heat-fines 19. The entire floor 20 of the baking-receptacle is laid with tile 21, which rest on the wall 16, the joints 17 (which are laid in fireclay) of the various pieces of tile being immediately over the wall 16, so arranged that the floor of the baking-oven will be perfectly smooth on top. The fire-box 10 is further provided with another line 22, of metal or other suitable material, which will hereinafter he described.

Just at the base of the arch are a number of long rods 23, which extend entirely through the device,tho rods being provided with heads 24 and nuts 25 to overcome the thrust of the arch on the side walls. Just above these rods are a u um ber of iron bars 26, which extend the full length of the baking-receptacle. These bars are suspended by a number of hangers 27, which extend through the arch above, and made fast at the upper surface of the arch. The bars of iron 26 carry the door 28 of the heat-chamber 9, the said floor being laid of tile 29 substantially in the same way as the tile floor below, all in such a manner as to form the heat-chamber 9, as heretofore described.

In the front of the oven, at the upper left corner, is a fire-box 30, (provided with a door 31,) which has connected therewith a'metal fine 32, which connects with the chimney-flue 14. The side wall 33 of the fire-box has an opening 34 through it to convey the heat from the fire-box into the heat-chamber 9. The fire-box 30 is provided with another flue 35, (which has a damper 36,) which leads out into open air above.

The heat-chamber 9 is provided with an opening 37, which has a door opening from the outside, through which accumulated ashes can be removed.

To prevent ashes from passing from flue 11 through heat-fines 18 into spaces 17, small pieces of perforated metal (not shown) may be placed over the ends 38 of the flue 18.

As to the operation of my device, when the fire is built in the fire-box 10 the smoke and heat pass from it into the flue 11 through the opening 11, in part reaching the line 14 by passing around the sides of the oven, while another part of the heat and products of combustion will pass through the aforesaid honeycombed system of passages under the oven, eventually reaching the same outlet.

The intensity of the heat passing through flue 11, as heretofore described, can be controlled by the damper 11", which is controlled by the crank 11, or all of the heat and smoke which would otherwise pass out through line 11 can be entirely out off by the damper 11 and allow the heat and smoke to pass out into open air through flue 22, which is controlled by damper 22. The fire-box 30 receives its supply of air through inlet-flue 32, controlled by damper 32. The smoke passes from it chiefly through a supplemental outlet-flue 35, controlled by damper 36. The heat of said fire-box is partly radiated through passage 34 into chamber 9 and partly carried into the same by the flow of air. Said firebox serves merely to heat the said chamber 9.

By the distribution of the heat as I have described it is known to me that the process of baking in the baking-receptacle is exceedingly uniform and not liable (as in other ovens) to irregularities in the degrees of heat in the baking-receptacle.

What I claim, and desire to secure by Let ters Patent, is-

1. An even having a honeycomb structure of many hollow spaces beneath it, the said spaces being connected with each other by passages extending laterally as Well as forward and backward through the intervening partitions, the said oven being further provided with a fire-box and a passage running therefrom around the sides of the said oven to the flue, this latter passage being connected at divers points to the said honeycomb structure of passages and spaces, in order that the heat may circulate under all parts of the oven transversely as Well as forward and back and also flow around the sides of the oven substantially as set forth.

2. An oven provided with an upper heatchamber 9, a fire-box 30, an opening 34 into the said space from the said boX, inlet and outlet fines 32 and 35 a tile floor 28 for said heat-chamber and'hangers 27 and bars 26 whereby the said tile floor. is supported substantially as set forth.

ANDREW J. BAXLEY.

Witnesses:

O. M. BOLLES, J. A. OAsPARY. 

